Percentage change expresses a move relative to the starting value, making moves at different price levels easier to compare.
The formula is (new value − old value) ÷ old value × 100.
How it works
- 1. Subtract the old price from the new price.
- 2. Divide the difference by the old price.
- 3. Multiply by 100.
- 4. Use a negative sign for declines.
- 5. Keep enough decimal places for small moves.
What matters most
- The denominator is the starting price.
- A fall and recovery of the same percentage are not symmetric.
- Large percentage moves compound over multiple periods.
- Price change alone does not include position size.
Practical example
A move from 80 to 100 is (100−80)/80 ×100 = 25%. A move from 100 back to 80 is −20%, not −25%.
Common mistakes to avoid
- Dividing by the new price.
- Assuming +50% followed by −50% returns to the starting value.
- Confusing percentage points with percent change.
- Applying the asset percentage move directly to account equity without considering exposure.
Using this on Chaintreda
Use CTmarketer’s percentage-change calculator for quick comparisons, then open Chaintreda Markets to inspect the actual live instruments.
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Frequently asked questions
Why are gains and losses asymmetric?
Because each percentage is calculated from a different starting value.
Is a 10% BTC move the same dollar amount every time?
No. The dollar move depends on the starting price, and your account result depends on your exposure.
Can percentage change be more than 100%?
Yes, when a value more than doubles from its starting level.
Continue learning
Risk note: This material is educational and does not constitute investment advice. Trading and digital-asset activity can result in losses. Use appropriate risk controls and only commit funds you can afford to lose.